A strong upper level disturbance will move through the Philadelphia and New York City metropolitan area this afternoon and evening with showers and a few thunderstorms. While most of the thunderstorms will not be severe, an isolated severe thunderstorm with wind gusts over 50 mph is possibly, especially over southern New Jersey. Otherwise, showers will exit by the early evening followed by clearing skies.
Given the high amount of low level moisture in the atmosphere, fog is a good bet after midnight with some of the fog becoming locally dense. Visibility in a few locations will fall below 2 SM, especially in some valley locations.
The hot and humid conditions will continue once again for tomorrow with highs rising into the upper 80’s to mid 90’s throughout the region. Along with the hazy, hot, and humid conditions will come the threat for strong to severe thunderstorms in the afternoon and early evening as an impressive upper level disturbance approaches from the northwest. The thunderstorms will be capable of strong wind gusts, heavy downpours, frequent lightning, and hail.
Hot and humid conditions will continue on through the rest of this week with a risk of an afternoon strong to severe thunderstorm as various disturbances attempt to move through the region. These thunderstorms will feature the threat of heavy rainfall and strong wind gusts the most, however large hail and an isolated tornado could not be ruled out. There is some support in the model guidance for a “cool down” into the 80’s, however I suspect this cool down to be over enhanced by the model guidance and will remain in the upper 80’s to lower 90’s with high humidity through the end of the forecast period.
For details for your location over the next seven day, visit the NY NJ PA Weather Local Seven Day Forecast.